!<!DOCTYPE html>
<html lang="zh-Hans">
  <head>
    <title>多少往事，甜在心头</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
  </head>
  <body>
    <h1>在项目的根目录中新建一个index.html文件，然后编写如下的代码(可以用快速生成的方式来写这段代码)。</h1>

    <Button id="btn">小姐姐请进来</Button>
    <div id = "mybaby"></div>
    <script src="renderder/index.js"></script>
  </body>
</html>